Locking device for automobile-hoods.



WITNESSES i? e A. E. MARSHALL.

LOCKING DEVICE FOR AUTOMOBILE HOODS.

APPLICATION FILED JUNE 17, 1913.

Patented May 19, 1914.

3 SHEETSSHEET l.

' ATTORNEYS A. E. MARSHALL.

LOOKING DEVICE FOR AUTOMOBILE HOODS.

APPLICATION FILEDJUNE 17, 1913.

1,097,455, Patented May 19,1914.

3 SHEETS-SHEET 2.

ATTORNEYS A. E. MARSHALL. LOCKING DEVICE FOR. AUTOMOBILE HOODS.APPLICATION FILED Julmn, 191s.

Patented May 19, 1914 3 SHEETS-SHEET 3.

. Brw 7 I ATTORNEYS INVENTOR swear E. MARSHALL, or AsHnvI LE, Noam;CAROLINA.

LOCKING nnvrcn r012. AUTOMOBILE-BOOBS.

Specification of Letters Patent.

Patented May 19, 1914.

Application filed June 17, 1913. Serial No. 774,138.

To all whom it may concern:

Be it known that I, ALBERT E. MARSHALL, a citizen of the United States,and a resident of Asheville, in the county of Buncombeand State of NorthCarolina, have made certain new and useful Improvements in LockingDevices for Automobile-Hoods, of which the following is a specification.

My invention relates to improvements in locking devices for automobilehoods, and it consists in the combinations, ,constructions, andarrangements herein described and claimed. p

An object of my invention is to provide means for looking or unlockingan automobile hood so as to permit access to the engine or other partscontained therein, the locking mechanism serving also as a means foractuating a switch to cut out the sparking circuit.

A further object of my invention is to provide a locking device in whichboth sides of the hood as well as both ends may be simultaneouslyvlocked or unlocked.

A further object of my invention is to provide novel mechanism foraccomplishing the looking and unlocking which is of'comparatively simplenature and which is posltive in action.

Other objects and advantageswill appear in the following specificationand the novel features of the device will be particularly pointed out inthe appended claims.

My invention is illustrated in the accompanying drawings forming part ofthis ap lication in whichigure .1 is a skeleton view showing the generalarrangement of parts, Fig. 2 is a ace view of the inner side of the endof the hood which forms part of the dash board. of the vehicle, Fig. 3is a face View of the switch in one position, Fig. 4 is a face view ofthe.swi tch in another position, Fig. 5 is a section along the line 5-5of Fig. 3, Fig. 6 is a section along the line '6-6 of Fig. 2, Fig. 7 isa perspective K view showing one of the cam members, and

Fig. 8 is a section along the line 8-8 of 4 Figi 1. y invention may beapplied to an automobile having any ordinary form of hood.

In the drawings 1 denotes the end of-the hood which forms part of thedash board of the vehicle, 2 the side members of the frame of thevehicle, and 3 the radiator end of the hood.

Secured to the inner side of the dash board 1 is a locking plate4 inwhich is mounted a rotatable barrel 5 arran ed to receive a key 6 (seeFig. 6). A pate 7 on the outside of the dash forms part of the lockingmechanism as in the ordinary lock. The barrel 5 bears an arm 8 which isrigidl connected with the barrel so as to turn wit it. It also bears anarm 9 which is loosely mounted on a stem' 5 which-forms a prolongationof the barrel 5. The arm 9 is held in The switch consists of aninsulating base 16 provided with contacts 17 and 18on one edge thereofand similar contacts 19 and 20 on the opposite edge. As will be seenfrom Fig. 8 t e movable part of the switch consists of an insulatingplate 21 pivoted at 22 to the base plate 16 and belng provided with anextension 21*. The plate 21 is'provided with sockets arranged toreceiveconducting balls 23, these balls being'normall'y connected by strips,such as those shown at 24. ,It w'ill be apparent from Fig. 8 that whenthe switch is in the position shown in the fi re the contacts 17 and 18are connecte through the balls 23 and the bridging contact 24. Theopposite side of the switch is connected in precisely the same way sothat when the switch is over the contacts 19 and-20 they are bridged.

A description of one of the locking members will be sufiicient sincethey are both alike.

These locking members consist of a baseplate 25 which is attached to themember 1 and an outer plate 26, which is spaced from the base plate bymeans of the spacing posts such as those shown at 27. Carried betweenthe plates 25 and 26 on a shaft 28 is a bell-crank lever whose short arm29 is connected by means of a wire or rod 30 with the short arm on theopposite locking member. The long arm 31 is provided at its end with anarc-shaped cam member 32 which is inclined from the vertical as shown inFigs. 6 and 7. 'Each of these members 32 is designed to engage the headof a pm 33 disposed in a sleeve 34 and which is norn'ially acted on by aspring 35 so as to press the head of the'pin 33 against the cam memberIt Will be seen from Fig. 1, however, that a strong spring 36 isconnected at one end to a prolongation 29 of one of the short arms 29 ofthe bell-crank lever .and at the other end to one of the stationaryspacing members 27. The tendency of the spring 36 therefore is to pullboth of the short arms of the bell-crank levers over toward theright ofFig. 1. The same short arm 29 of the bell-crank lever to which the wireor rod is attached is also connected to the arm 9 by means of a rod orwire 37.

The hood 38 is provided on its inner sides with. sleeves 39 having rods40 which are normally held within the sleeve by means of the springssuch as that shown at 41 in Fig. 6. When the hood is in its normalpositionthese rods 40 are designed to register with openings 3 in theradiator end of the hood.

From the foregoing description of the va rious parts of the device theoperation thereof may be readily understood. The wires 17 and 18*(seeFig. 1) connect with the contacts 17 and 18. These wires lead to themagneto sparking circuit, while the wires 19 and 20 which connect withthe terminals 19 and 20 lead to the battery circuit. Vhcn the machine isrunning the apparatus is in the position shown in Fig. 1. In thisposition it will be seen that the ends of the pins 33 have entered theends of the sleeves 39, but in doing so they push on the rods 40,thereby causing their ends to enter the recesses or openings 3 (see Fig.6). 'The hood is thus locked at its four corners. The switch, it will beobserved, is in a position to connect the terminals which lead from thecoil of the magneto. Now when it is desired to unlock the hood the keyis turned so as to swing the arm 8 from the position shown in Fig. 1around to that position shown in full lines in Fig.

4. Here it engages the head 37* of the rod- 37 which passes through thearm 9 and further turning pulls the arm 9 together unlocked, In themeantime the en 00 arm 9 has engaged the projection 21* of with the rod37 against the tension of the spring 36. As the bell-crank levers moveout of the way of the pins 33 the latter are retracted by their springs35. The rods 40 are retracted by their springs 41 and thus the hood isunlocked at its four corners.

When the arm 8 is turned by the key as far as the position shown in Flg.2 the pin 12 on the spring arm 13 passes into the recess 9 of the arm 9,thereby holding the arm in position and keeping the pood o the theswitch and brought it back so as to connect the battery circuit. Thehood will still be unlocked until'the key is turned in the reversedirection so as to bring the arm into the position shown in Fig. 3. Hereit strikes the pin 12 and forces it out of the socket 9*, thereupon thespring 36* pulls on the bell-crank levers and causes their inclinedportions 32 to force the pins 33 outwardly thus locking the hood. Inthis connection it will be observed that one of the bell-crank leversmoves upwardly while the other moves downwardly, but the principleinwhich they are operated is precisely-the same. After the hood has beenlocked the arm 8 may be turned farther by the key into the dotted lineposition shown in Fig. t and the switch may then be turned so as tobring into circuit the magneto sparking device.

T claim:

1. The combination in an automobile having a dash board and a radiatorhead, of a hood for closing the space between the dash board and theradiator head, sleeves carried by the hood on the interior thereof,spring pressed rods disposed within said sleeves and arranged to engagethe radiator head, and pins carried by the dash board and arranged toenter the ends of said sleeves for moving said spring pressed rods intoengagement with the radiator head.

2. The combination in an automobile havhood for closing the spacebetween the dash board and the radiator head, sleeves carried by thehood on the interior thereof, sprlng ing a dash board and a radiatorhead, of a pressed rods disposed within said sleeves and arranged toengage the radiator head, pins carried by the dash board and arranged toenter the ends of said sleeves for moving said spring pressed rods intoengagement with the radiatorhead and means including cam membersarranged to engage said pins for operating the latter.

3. The combination in an automobile having a dash board and a radiatorhead, of a hood for closing the space between the dashboard and theradiator'head, sleeves carried by the hood on the interior thereof,spring pressed rods disposed within said sleeves and arranged to engagethe radiator head, pins carried by the dash board and arranged to enterthe ends of said sleeves for moving said spring pressed rods intoengagement with the radiator head, cam members for forcing said springswithin said sleeves, a rotatable barrel carried by said dash board, anarm rigidly carried by said barrel, a second arm loosely mounted on saidbarrel and arrangedto be engaged by said firstmentioned arm, connectionsbetween said second-mentioned arm and one of said cam members foroperating the latter, and connections between said cam members for op:crating the cam members simultaneously. 7

4. The combination in an automobile having a dash board and a radiatorhead, of a' hood for closing the space between the dash board and theradiator head, sleeves carried by thehood on the interior thereof,spring pressed rods disposed within said sleeves and arranged to engagethe radiator head, pins carried by the dash board and arranged to enterthe ends of said sleeves for moving said spring pressed rods intoengagement with the radiator head, cam members for forcing said springswithin said sleeves, a rotatable barrel carried by said dash board, anarm rigidly carried by said barrel, a second arm loosely mounted on saidbarrel arid arranged to be engaged by said first-mentioned arm,connections between said secondmentioned arm and one of said cam membersfor operating the latter, connections between said cam members foroperating the cam members simultaneously, and a switch for controllingthe sparking circuit arranged to be engaged by said rigid arm.

5. The combination in an automobile having a dash board and a radiatorhead, of a hood for closing the space between. thedash board and theradiator head, sleeves carried by the hood on the interior thereof,spring pressed rods disposed within said sleeves and arranged to engagethe radiator head,

pins carried by the dash board and arranged to enter the ends of saidsleeves for moving said spring pressed rods into engagement with theradiator head, cam members for forcing said springs within said sleeves,a

rotatable barrel carried by said dash board,

- an arm rigidly carried by said barrel, a second arm loosely mountedonsaid barrel and arranged to be engaged by said first-mentionedarm,connect1ons between said secondmentioned arm and one of said cammembers for operating the latter, connections between said cam members.for operating the cam members simultaneously, a spring secured to oneof said cams, and means for locking said loosely mounted arm in itsshifted position against the tension of said last-mentioned I spring.

pressed rods disposed within said sleeves and arranged to engagethe-radiator head, pins carried by the dash board and arranged to enterthe ends of said sleeves for moving said spring pressed'rods intoengagement with the radiator head, cam members for forcing said springswithin said sleeves, a rotatable barrel carried by said dash board, anarm rigidly carried by said barrel, 9. second arm loosely mounted onsaid barrel and arranged to be engaged by said firstmentioned arm,connections between said second-mentionedarm and one of said cam membersfor operating the latter, connections between said cam members for oerating the cam members simultaneous y, a spring secured to one of saidcams, and means for locking said loosely mounted arm in its shiftedposition against the tension of said last-mentioned spring, the rotationof said rigid arm serving to unlock said loosely mounted arm therebypermitting said cams to return to thelr normal positlon.

ALBERT E. MARSHALL.

Witnesses EDWIN L. RAY, J NO. A. C AMPBELL.

